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Finding the Fourth Proportional to 223,124.63, 307,911.80 and 122,522.63

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Solution

The fourth proportional to 223,124.63, 307,911.80 and 122,522.63 is: 169,081.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,124.63 : 307,911.80 = 122,522.63 : x
  2. Step 2: Convert to fraction form
    223,124.63/307,911.80 = 122,522.63/x
  3. Step 3: Cross multiply
    223,124.63x = 307,911.80 × 122,522.63
  4. Step 4: Simplify right side
    223,124.63x = 37,726,163,544.03
  5. Step 5: Solve for x
    x = 37,726,163,544.03/223,124.63
  6. Step 6: Final answer
    x = 169,081.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.